A newly applied for BlackBerry patent calls for a user interface that would display which wireless networks are available for the BlackBerry device to use at any given time.

The patent app is numbered 20060183477, and refers to "Network selection user interface for wireless devices."

As with some (but certainly not all) BlackBerry patent apps, the Abstract does a decent job of defining what is being described:

A method for selecting a wireless network for a wireless device comprising: receiving a command from a user through a clickable thumbwheel and a graphical user interface ("GUI") presented on a display of the wireless device to scan for and identify available networks; displaying a choice of the available networks on the display; and, receiving a command from the user through the clickable thumbwheel and the GUI to switch operation of the wireless device from a current network to an available network in the choice of the available networks.

Now I think you will want to see the GUI. Have been building up to it, actually.

Here:

Looks pretty straightforward to me.

To you?